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CN-224210426-U - Injection mold with changeable injection cavity size for plastic product processing

CN224210426UCN 224210426 UCN224210426 UCN 224210426UCN-224210426-U

Abstract

The utility model provides an injection mold with a variable injection cavity size for processing plastic products, which relates to the technical field of injection molds and comprises a lower mold, wherein an upper mold is arranged on the top surface of the lower mold, forming cavities for injection molding are formed on the top surface of the lower mold and the bottom surface of the upper mold, a feeding hole is formed on the top surface of the upper mold, the feeding hole is communicated with the forming cavities on the upper mold, and through the mutual matching of the arranged lower mold, the upper mold, an air pump, a three-way pipe, a supporting pipe, an air bag, a sealing frame and the forming cavities, a movable plate moves to a proper position in the forming cavities, the moving stability of the movable plate can be improved through the mutual matching of the arranged movable plate, a connecting rod, a sliding seat, a supporting box and a spring, and a worker moves the two movable plates to the proper position, so that the injection moldable area in the forming cavities is reduced, and the size adjusting effect of the forming cavities on the lower mold and the upper mold is achieved.

Inventors

  • LIN WEIZHONG

Assignees

  • 深圳市嘉宇顺科技有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (6)

  1. 1. An injection mold with a variable injection cavity size for plastic product processing, comprising: the injection molding machine comprises a lower die (1), wherein an upper die (2) is arranged on the top surface of the lower die (1), a forming cavity (3) for injection molding is formed in the top surface of the lower die (1) and the bottom surface of the upper die (2), a feeding hole (9) is formed in the top surface of the upper die (2), the feeding hole (9) is communicated with the forming cavity (3) on the upper die (2), and a connecting pipe (10) for feeding is fixedly arranged on the top surface of the upper die (2); The adjusting mechanism (6) is arranged in the upper die (2) and used for adjusting the space in the forming cavity (3).
  2. 2. The injection mold with the changeable injection cavity size for plastic product processing according to claim 1, characterized in that the adjusting mechanism (6) comprises a plurality of movable plates (11), the plurality of movable plates (11) are respectively and slidably connected in two the molding cavities (3), the air bags (13) are fixedly installed on two inner sides of the upper mold (2), three-way pipes (15) are respectively arranged on one side of the lower mold (1) and one side of the upper mold (2), supporting pipes (19) are connected at two ends of the three-way pipes (15), one end of each supporting pipe (19) penetrates through the lower mold (1) or the upper mold (2) and is communicated with the air bags (13), an air pump (16) for air intake is fixedly sleeved on the outer circular wall surface of each three-way pipe (15), supporting boxes (14) are fixedly installed on two inner circular wall surfaces of the molding cavities (3), sliding seats (20) are slidably connected on the inner circular wall surfaces of the supporting boxes (14), one side of each sliding seat (20) is fixedly installed with a connecting rod (21), and one end of each supporting rod (21) penetrates through each connecting rod (21) and is fixedly connected with one side of the corresponding connecting rod (21).
  3. 3. The injection mold with the variable size of the injection cavity for plastic product processing according to claim 2, wherein the flow equalizing valve (24) is fixedly sleeved on the inner circular wall surface of the three-way pipe (15), and the two air inlet valves (23) are fixedly sleeved on the inner circular wall surface of the three-way pipe (15).
  4. 4. The injection mold with the variable injection cavity size for plastic product processing according to claim 2, wherein two supporting blocks (17) are fixedly installed on one side of the lower mold (1) and one side of the upper mold (2), a fixing ring (18) is fixedly installed on the outer circular wall surface of the supporting blocks (17), and the inner circular wall surface of the fixing ring (18) is fixedly sleeved with the outer circular wall surface of the supporting pipe (19).
  5. 5. The injection mold with the changeable injection cavity size for plastic product processing according to claim 1, wherein the top surface of the lower mold (1) is provided with a plurality of positioning grooves (7), the bottom surface of the upper mold (2) is fixedly provided with a plurality of positioning columns (8) for positioning, and the outer circular wall surface of the positioning columns (8) is movably sleeved with the inner circular wall surface of the positioning grooves (7).
  6. 6. The injection mold with the variable injection cavity size for plastic product processing according to claim 1, wherein the two sides of the lower mold (1) are fixedly provided with support plates (4), and the top surface of each support plate (4) is provided with a plurality of fixing holes (5).

Description

Injection mold with changeable injection cavity size for plastic product processing Technical Field The utility model relates to the technical field of injection molds, in particular to an injection mold with a variable injection cavity size for processing plastic products. Background Injection molds are an essential component in the injection molding process. In an injection molding process, a plastic feedstock (typically a thermoplastic) is heated to a molten state and then the molten plastic is injected into a cavity of a mold at a pressure and speed by an injection device of an injection molding machine. The shape and size of the mold cavity determines the shape and size of the plastic article. After the plastic is cooled and solidified in the cavity, the mold is opened, the molded plastic product can be taken out, and the design and manufacturing precision of the injection mold have a critical influence on the quality, production efficiency and cost of the plastic product. Through retrieving, it is found that the injection mold in the prior art has a problem, and as the size of the cavity in the injection mold is fixed, the injection mold can only inject one plastic part, and the forming cavity on the injection mold is difficult to adjust, so that the injection mold is difficult to use for multiple times. Therefore, it is necessary to provide a new injection mold with a changeable injection cavity size for processing plastic products to solve the above technical problems. Disclosure of utility model The utility model solves the technical problem of providing an injection mold with a changeable injection cavity size for processing plastic products. In order to solve the technical problems, the injection mold with the changeable size for processing the plastic product comprises a lower mold, wherein an upper mold is arranged on the top surface of the lower mold, forming cavities for injection molding are formed on the top surface of the lower mold and the bottom surface of the upper mold, a feeding hole is formed on the top surface of the upper mold, the feeding hole is communicated with the forming cavities on the upper mold, and a connecting pipe for feeding is fixedly arranged on the top surface of the upper mold; The adjusting mechanism is arranged in the upper die and used for adjusting the space in the forming cavity. Preferably, the adjustment mechanism includes a plurality of fly leaf, a plurality of fly leaf respectively sliding connection in two the inside of shaping chamber, the inside both sides of going up the mould are all fixed mounting has the gasbag, one side of bed die with one side of going up the mould all is provided with the three-way pipe, the both ends of three-way pipe are connected with the stay tube, the one end of stay tube runs through the bed die or go up the mould and with the gasbag is linked together, the outer disc wall of three-way pipe is fixed to have cup jointed the air pump that is used for admitting air, the inside both sides of shaping chamber are all fixed mounting has the support box, the interior disc wall sliding connection of support box has the sliding seat, one side fixed mounting of sliding seat has the connecting rod, the one end of connecting rod runs through the support box with one side fixed connection of fly leaf, the outer disc wall cover of connecting rod is equipped with the spring. Preferably, the inner circular wall surface of the three-way pipe is fixedly sleeved with a flow equalizing valve, and the inner circular wall surface of the three-way pipe is fixedly sleeved with two air inlet valves. Preferably, two supporting blocks are fixedly installed on one side of the lower die and one side of the upper die, a fixing ring is fixedly installed on the outer circular wall surface of each supporting block, and the inner circular wall surface of each fixing ring is fixedly sleeved with the outer circular wall surface of each supporting tube. Preferably, the top surface of the lower die is provided with a plurality of positioning grooves, the bottom surface of the upper die is fixedly provided with a plurality of positioning columns used for positioning, and the outer circular wall surface of the positioning columns is movably sleeved with the inner circular wall surface of the positioning grooves. Preferably, the two sides of the lower die are fixedly provided with supporting plates, and a plurality of fixing holes are formed in the top surface of each supporting plate. Compared with the related art, the injection mold with the variable size of the injection cavity for processing the plastic product has the following beneficial effects: The utility model provides an injection mold with a changeable injection cavity size for processing plastic products, which is characterized in that a movable plate moves to a proper position in a molding cavity through the mutual matching of a lower mold, an upper mold, an air pump, a three-way pipe, a supporting pi